Control Function---Prepay water charge via water purchasing&sol;rechargeable card&comma; prepayment before usage&comma; eradicate phenomena of water charges arrears&period;

Inquiry Display---LCD capable to display the current purchased volume&comma; remaining volume&comma; accumulative consumed volume&comma; facilitate user queries&semi; Maintenance personnel and background management system can inspect and analyze the data which is read-out by using the inspection card&period;

Protection Function---Valve will shut automatically under circumstances of battery under voltage&comma; power supply interruption or external magnetic field interference&period;

Remind & Alarm---Timely remind or alarm in the situations of battery under voltage&comma; remaining volume insufficiency&comma; misoperation or magnetic disturbance&period;

Automatic Statistics---Automatically collect and analyze the monthly actual consumption situation of every water user&comma; suit the operating department's management convenience